Telephone-receiver support



(No Model.)

I. J. KUS-EL.

, .TELEEEONE RECEIVER SUPPORT. y No. 548,210. Patented Oct. 22, 1895.

a if? l l m9 E UNITED STATES PATENT OFFICE.

IsIDoR J. KUsEL, oF sT. LoUIs', MIssoUEI.

TELEPHONE-RECEIVER SUPPORT.

SPECIFICATION forming part of Letters Patent N o. 548,210, dated October 22, 1895.

' Application filed February 18,1895. Serial No. 538,775. (No model.)

.To @ZZ whom it may concern.:

Be it known that ISIDOR J. KUSEL, ot' the city of St. Louis, State of Missouri, have invented certain new and useful Improvements in Telephone-Receiver Supports, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming a part hereof.

My invention relates to an improved automatic switch for telephones; and it consists in the new and novel features of construction and arrangement of parts that will be more fully hereinafter specified and claimed.

In the drawings, Figure 1 is an elevation of a portion of the inner face of one side of the receiving-box of a telephone, the same having my improved switch applied thereto. Fig. 2 is a vertical sectional View taken approximately on the indicated line 2 2 of Fig. 1.

Fig. 3 is a `horizontal sectionalview taken approximately7 on the indicated line 3 3 of Fig. 1. Fig. 4 is a view in perspective of a stationary hook I make use of in carrying out my invention. Fig. 5 is a view of a modified form of my switch, the same being applicable for' use where a magneto-bell is used in the ringing or bell circuit.

Referring by numerals to the accompanying drawings, 1 indicates the side wall of the receiver-box, through which at any convenient point is formed a circular aperture 2.

3 indicates a hook I make use of in carrying out my invention, the same comprising a base 4, in which is formed a circular aperture 5, that is approximately'of the same diameter as is the aperture or passage 2 in the wall 1. Said base 4 is also constructed with integral perforated ears 6.

Extending laterally from the sides of the base 4 are the curved arms 7, the ends 8 of which are turned inwardly and upwardly. These arms 7 are constructed preferably of metal and of such resiliency as that they will clasp and hold the telephone-receiver when it is properly placed between them. This hook 3 is positioned upon the outside face of the side wall 1 in such a manner as that the aperture 5 in the base 4 will register or coincide with the aperture or passage 2 in said side wall 1. By means of screws 9, passing through the perforated ears 6, or in any suitable manner, this hook is held in a fixed and rigid position to the outside of the side wall 1 of the receiver-box.

l0 indicates a rectangularly-bent yoke, in the head portion of which is formed a rectangular aperture 11. Said yoke 10 is constructed with perforated ears 12, that rest upon the inner face of the wall 1 and are located upon each side of the aperture 2 therein, thus bringing the rectangular aperture 11 in direct alignment with the coinciding apertures 2 and 5. By means of screws 13, passing through the perforated ears 12 into the side wall 1, or in any suitable manner, this yoke is held in a fixed position.

14 indicates a rod or plunger that is adapted to move freely through the coinciding apertures 2 and 5, the outer end 15 of said plunger being squared and adapted to move free through the square aperture 1l in the head of the yoke 10. The opposite end of this plunger 14 extends to a point between the arms 7 of the hook 3 and is there provided with a curved plate 16, that is in conformity with the curvature of the arms 7. n

A resilient curved metallic strip 17 is constructed at its longitudinal center with a square aperture 18, through which passes the squared end 15 of the plunger 14. By means of a pin 19, passing through the squared portion 15 of the plunger 14,- this resilient curved strip 17 is held against the shoulder between the squared end 15 and the plunger 14. A coil-spring 20 is wound around the squared portion 15 of the plunger 14 and interposed between the resilient strip 17 and the head of the frame 10.

Located at equal distances above and below the frame 10 and on the inner face of the side wall 1 are lflat contact-plates 21, the

ysame being held in proper position by screws tact-plates 21. By means of screws 26, passing through the ends of these plates 24, or in any suitable manner, said plates are rigidly held in proper position and said screws 26 form means whereby the conductors 27 from the bell or ringing circuit are secured.

When the contact-plates are properly positioned and the resilient metallic strip 17 is correctly located upon the plunger 14, the ends of said strip 17 lie between the two pairs of contact-plates 21 and 24. Retaining-hooks 28 are arranged on opposite sides and adjacent the resilient strip 17 and are for the purpose of restricting the movement of the same.

Vhere my improved switch is applied to a telephone wherein a magneto-bell is used, the contact-plates 21 and 24, also the corresponding half of the resilient strip 17, are dispensed with, and the connection from said magnetobell made directly to the base ofthe frame 10. This construction is clearly illustrated in Fig. 5.

The operation of my improved switch is as follows: Vhen the telephone-receiver is off the hook and in use, the coil-spring 20,being an expansive spring, throws the strip 17 and plunger 14 outwardly and to the position as shown by solid lines in Figs. 2 and 3, the ends of said strip 17 being in contact with the plates 21. This, as may be readily perceived, completes the talking or telephone circuit. IVhen the operator is through with the receiver of the telephone, the upper end of the same is passed between the inwardlysbent ends 8, of the arms 7, and said arms 7 being resilient, the receiver will pass between said inwardly-bent ends and to its proper restingpoint between the outwardly-curved portions of the arms 7. In so doing the end of the receiver will contact with the curved plate 16 on the end of the plunger 14, and with the continued movement of said receiver said plate and plunger will move forward in the direction of the arrow in Fig. 3. When the receiver has reached its proper resting-point, the plunger and curved plate ou the end thereof will assume the positions indicated by the dotted lines in Fig. 3. As the plunger moves forward, the strip 17 will necessarily be carried forward at the same time. With said forward movement of the strip 17 the ends thereof will leave the contactplates 21 and engage and contact with the upturned ends 25 of the plates 24, thereby completing the ringing or bell circuit. This circuit will remain completed until the receiver is removed from the hook, when the resiliency of the coil-spring 2O will return the plunger and the strip to the positions previously described.

In Fig. 2 the receiver is shown in its proper position on the hook in dotted lines, and the strip 17 is likewise shown in contact with the plates 24 and completing the ringing or bell circuit.

I have found that by using a stationary and fixed hook much better results are obtained in making and breaking the talking and ringing circuits than where a movable hook is used, as said movable hook is very liable to get out of order and is notcapable of being easily adjusted. Thus it will be seen how I g have constructed an improved switch, wherein the talking and ringing circuits are automatically completed and positively controlled by the hanging and the removing ofthe receiver from a stationary hook.

I do not limit myself to the exact details of construction shown, as it is obvious that the same may be changed within the limits ot mechanical skill without departing from the true spirit and scope of my invention.

A switch so constructed is positive in action, less liable to get out of order than the forms now in general use, and possesses superior advantages in point of simplicity, durability, and general etlciency.

What I claim is- 1. In a telephone switch, the combination of a rigidly fixed hook, a spring-actuated plunger passing through the base of said hook, aresilient metallic strip carried by the end of said plunger, contact plates located upon each side of each end of the resilient strip and with which the conducting wires from the talking and ringing circuits are connected.

2. A telephone switch, comprising a hook `having resilient arms adapted to engage the end of the telephone receiver, a horizontally moving rod or plunger passing through an aperture in the base of the hook and through the side wall of the transmitter box, a curved plate fixed upon the outer end of the rod, a resilient metallic strip carried by the inner end of said rod, and the contact plates located upon each side of each end of the strip and to which the conductors from the ringing and talking circuits are connected.

In testimony whereof I affix my signature in presence ot' two witnesses.

ISIDOR .I KUSEL. Witnesses:

M. G. IRION, JOHN C. HIGDON. 

